Installation Instructions - Advanced Distributor Products

1 0659370 -83. December 2010. Installation Instructions R Series Multi-Position Air Handler Electric or No Heat, with available Variable-Speed High Efficiency ECM Motor Table of Contents AIR HANDLER SAFETY 1. Installation REQUIREMENTS 2 Connect Refrigerant Lines 8. Tools and Parts 2 Refrigerant Charging Instructions 8. Outdoor System Requirements 2 Electrical Connections . Location Requirements 2 Models without Factory Installed Electric Heat 9. Installation Configurations 3 Models with Factory Installed Electric Heat 10. Drain Pan Connections 4 Thermostat Connections 11. Electrical Requirements 5 Wiring Diagram 13. Ductwork Requirements 6 Complete Installation 15. Installation Instructions 6 Blower Performance Chart 16. Inspect Shipment 6 SEQUENCE OF OPERATION 18.

2 Install Condensate Drain 7 AIR HANDLER MAINTENANCE 18. Install Ductwork 7 ASSISTANCE OR SERVICE 18. Verify Orifice Size 8 WARRANTY 19. AIR HANDLER SAFETY. Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word DANGER or WARNING. These words mean: You can be killed or seriously injured if you don't immediately follow Instructions . You can be killed or seriously injured if you don't follow Instructions . All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can happen if the Instructions are not followed.

3 Installation REQUIREMENTS. These Instructions are intended as a general guide only and do Tape measure not supersede any local state or national codes in any way. Compliance with all local, state, or national codes pertaining to Hammer this type of equipment should be determined prior to Installation . Sealant Read this entire instruction manual, as well as the Instructions supplied in separate equipment, before starting the Installation . Parts Needed All models are designed for indoor Installation only. Check local codes, check existing electrical supply, and read The Installation of the air handler, field wiring, warm air ducts, Ductwork Requirements, and Electrical Requirements, before etc. must conform to the requirements of the National Electrical purchasing parts.

4 Code, ANSI/NFPA No. 70 (latest edition) in the United States, and any state laws, and local ordinances (including plumbing or UL listed wire nuts wastewater codes). Local authorities having jurisdiction should Refrigerant metering orifice (if needed). See Verify be consulted before Installation is made. Such applicable Orifice Size. The correct orifice size may be contained regulations or requirements take precedence over the general in the replacement orifice package located inside the Instructions in this manual. control box or the outdoor unit. If this package does not Install the conditioned air plenum, ducts and air filters (not contain the correct orifice for your air handler, you must provided) in accordance with NFPA 90B Standard for the purchase the correct orifice size.

5 Installation of Warm Air Heating and Air-Conditioning Systems (latest edition). The air handler is provided with flanges for the connection of the plenum and ducts. Outdoor System Requirements Air filters must be listed as Class 2 furnace air filters. The air handler is designed to match, and must be used with, The air handler can be used with R-22 or R-410A from the outdoor units as rated. The indoor sections are manufactured factory. with an interchangeable refrigerant metering orifice to provide The air handler is shipped from the factory completely optimum refrigerant control and system performance with a assembled. Some models are configured for upflow air discharge variety of different capacities or outdoor units. only, and some models are configured for upflow or horizontal In some cases, the rating of the outdoor unit may require that the left-hand air discharge.

6 The air handler cabinet conforms to 2% air handler refrigerant metering orifice be changed or replaced by or less air leakage. a thermal expansion valve to obtain rated performance. Do not remove the cabinet knockouts until it has been determined which knockouts will need to be removed for the Installation . Select the final Installation position which best suits the site conditions. Consider required clearances, space, and routing Location Requirements requirements for refrigerant line, condensate disposal, filters, ductwork, wiring, and accessibility for service. Refer to the air handler rating plate on the air handler for specific information. !! WA. W RN. AR NG. NIIN G. Explosion Hazard Keep flammable materials and vapors, such as gasoline, away from air handler.

7 Place air handler so that heating elements are at Tools and Parts least 18 inches (46 cm) above the floor for a garage Gather the required tools and parts before starting Installation . Installation . Read and follow the Instructions provided with any tools listed here. Failure to follow these Instructions can result in death, explosion or fire. Tools Needed Nut driver Level Screwdriver SAE open end wrench or SAE flare wrench 2. NOTE: When used on cooling applications, excessive sweating may occur when the air handler is installed in a very humid space. If installed in an unconditioned space, sealant should be applied around the electrical wires, refrigerant tubing, and condensate lines where they enter the cabinet. Installation Configurations Electrical wires should be sealed on the inside where For ease in Installation , it is best to make any necessary coil they exit the conduit opening.

8 Sealant is required to configuration changes before setting air handler in place. See prevent air leakage into and condensate from forming Installation Configuration Options.. inside the air handler, control box, and on electrical controls. Upflow only air discharge only contains 1 drain pan. The air handler must be installed in such a way as to Upflow/Horizontal airflow contains 2 drain pans. allow free access to the coil/filter compartment and blower/control compartment. The air handler must be installed with a drop in the Vertical Installations horizontal position towards the drain pan to ensure proper condensate drainage. The air handler should Upflow also be tilted from back to front toward the drain line. The air handler must be supported on the bottom only and set on IMPORTANT solid floor or field supplied supporting frame.

9 Securely attach the air handler to the floor or supporting frame. Horizontal Installations The Clean Air Act of 1990 bans the Horizontal installations can be left-hand or right-hand air supply. intentional venting of refrigerant (CFC's and Adequate support must be provided to ensure cabinet integrity. HFC's) as of July 1, 1992. Approved Ensure that there is adequate room to remove service and methods of reclaiming must be followed. access panels if installing in the horizontal position. For correct Fines and/or incarceration may be levied for horizontal coil Installation , see Installation Configuration non compliance. Options.. IMPORTANT: This coil is provided with a secondary drain that should be trapped and piped to a location that will give the occupant a visual warning that the primary drain is clogged.

10 See Install Condensate Drain.. When an evaporator coil is installed in an attic or above a finished ceiling, an auxiliary drain pan should be Installation Clearances provided under the air handler as specified by most Non-Ducted Return Closet Installation local building codes. The air handler can be installed in a closet with a false bottom to form a return air plenum or be installed with a return air plenum Conversion from Vertical to Horizontal under the air handler. Louvers or return air grilles are field supplied. Local codes may An upflow only air handler may be converted to horizontal air limit application of systems without a ducted return to single-story discharge by installing a horizontal drain pan kit. See buildings. Accessories.. For a unit installed in a closet with a louvered return An upflow/horizontal air handler may be converted from opening, the minimum open area for the louvers will be horizontal left-hand discharge to horizontal right-hand discharge - 320 square inches for 18 and 24 models without additional parts.